Hi.
I was finished working on the projectm closed it, because I needed to check a hight in another project. When I wanted to open that other project, the computer froze as it does from time to time, but not very often. Ok, I turned it off and on again - and then this error appeared, when I try to open the project I was working on. I have never seen this kind of error before. It doesn't appear with any other projects and the files in Dietrichs looks pretty much ok (I mean they doesn't seem to be deleted for example).